DE281932C

DE281932C -

Info

Publication number: DE281932C
Application number: DENDAT281932D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 281932 KLASSE Ac. GRUPPE- M 281932 CLASS Ac. GROUP

HUGO JUNKERS in AACHEN, Frankenburg.HUGO JUNKERS in AACHEN, Frankenburg.

Gasverbrauchsregler, insbesondere für Flüssigkeitserhitzer.Gas consumption regulators, in particular for liquid heaters.

Patentiert im Deutschen Reiche vom 20. Mai 1913 ab.Patented in the German Empire on May 20, 1913.

Es sind Gasverbrauchsregler bekannt, bei denen die Regelung durch die Bewegung eines Drosselkörpers in einem gekrümmten, in der Strömungsrichtung des Gases ansteigenden und in dieser Richtung sich verengenden Kanal erfolgt, wobei als Drosselkörper ein Kolben verwendet wird, welcher je nach seiner Lage .den Durchschnittsquerschnitt für das Gas mehr oder weniger absperrt. Abgesehen davon, daß dieser Kolben nur dann richtig arbeiten kann, wenn der Kanal in Form eines Kreises oder ungefähr in der Form eines Kreises aufsteigt, so weist ein solcher Kolben als Drosselkörper den Nachteil auf, daß. er eine genügend lange Führung besitzen muß,- wenn er gut laufen und nicht ecken soll.There are gas consumption regulators are known in which the control by the movement of a Throttle body in a curved, rising in the direction of flow of the gas and in this direction narrowing channel takes place, with a piston as a throttle body is used, which, depending on its location. the average cross-section for the gas more or less shut off. Apart from the fact that this piston can only work properly if the channel rises in the shape of a circle or roughly in the shape of a circle, such a piston as a throttle body has the disadvantage that. he long enough Must have leadership - if it should run well and not corner.

Diese Arbeitsweise hat aber den Übelstand zur Folge, daß eine sehr große gleitende Reibung vorhanden ist, die besonders ungünstigHowever, this mode of operation has the disadvantage that a very large sliding friction is present, which is particularly inconvenient

ao auf den Betrieb des Reglers einwirkt, wenn dieser in dem unteren Regelungsbereich arbeitet. ao affects the operation of the controller if this works in the lower regulation range.

Andererseits sind Vorrichtungen bekannt, bei denen der letztere Übelstand der gleitenden Reibung. des Drosselkörpers in dem Gaszuleitungskanal dadurch vermieden wird, daß als Drosselkörper nicht ein Kolben, sondern eine Kugel oder Walze Verwendung findet. Es bewegt sich aber die Kugel nicht auf einer allmählich immer stärker ansteigenden Bahn, sondern auf einer Bahn, welche immer den gleichen Neigungswinkel zur wagerechten EbeneOn the other hand, devices are known in which the latter drawback of the sliding Friction. of the throttle body in the gas supply channel is avoided in that as Throttle body is not a piston, but a ball or roller is used. It moves but the ball does not follow a gradually increasing path, but on a track, which always has the same angle of inclination to the horizontal plane

: einschließt. Die Kugel dient bei dieser Vorrichtung auch nicht dazu, den Gasverbrauch zu regeln, sondern die Gaszufuhr abzuschließen, und zwar in dem Augenblick, in welchem ein bestimmter Maximalgasdruck bzw. eine bestimmte Maximalströmungsgeschwindigkeit erreicht wird.: includes. The ball is used in this device also not to regulate the gas consumption, but to shut off the gas supply, namely at the moment in which a certain maximum gas pressure or a certain Maximum flow velocity is reached.

Gegenstand der vorliegenden Erfindung ist ' eine Kombination der beiden bekannten Merkmale, die darin besteht, daß ein ohne wesentliche Reibung rollender Drosselkörper, ζ. Β. ■ eine Kugel oder Walze, in einem allmählich sich nach oben verengenden gebogenen Gaszuleitungsrohr arbeitet. Die Bahn für die Kugel kann dabei kreis- oder ellipsenförmig oder nach einer beliebigen Kurve verlaufen. Bedingung ist nur, daß der Widerstand der Kugel bei höherem Gasdruck zunimmt, wobei sich der Durchflußquerschnitt in der Weise verengt, daß nur immer dieselbe Menge Gas zum Brenner gelangen kann. Weil durch die Verwendung der rollenden Kugel oder Walze die gleitende Reibung vermieden wird, wird die Einstellungsgenauigkeit sehr groß, und die Gefahr eines Festsetzens durch Schmutz oder Feuchtigkeit, wie dieses bei einem Kolben als Drosselkörpcr sehr leicht auftritt, sehr vermindert.The subject of the present invention is' a combination of the two known features, which consists in the fact that a throttle body rolling without significant friction, ζ. Β. ■ a ball or roller in a bent gas supply pipe that gradually narrows upwards is working. The path for the ball can be circular or elliptical or follow any curve. The only condition is that the resistance of the ball increases with higher gas pressure, whereby the flow cross-section narrows in such a way that only the same amount of gas can reach the burner. Because by using the rolling ball or roller the sliding friction is avoided, the adjustment accuracy becomes very high, and the Risk of sticking due to dirt or moisture, as is the case with a piston occurs very easily as a throttle body, very diminished.

Da unter anderem auch der Heizwert und das spezifische Gewicht je nach der Gasart sich wesentlich verändern können, so kann gemäß vorliegender Erfindung der Gasverbrauchsregler auch noch mit einer geeigneten Einstellvorrichtung versehen sein.There, among other things, the calorific value and the specific weight depending on the type of gas can change significantly, according to the present invention, the gas consumption regulator also be provided with a suitable adjustment device.

Claims

Various embodiments of the consumption regulator are shown in the drawing.

FIGS. 1 and 2 illustrate, in a longitudinal section according to AB of FIG. 2 or in the front view, a regulator in which the regulating element, the ball, moves on a circular path.

3 and 4 show a similar embodiment in a longitudinal section according to CD of FIG. 4 and in the front view, only here the path of the ball is elliptical.

5 and 6 show, the latter in section according to EF of FIG. 1, as a throttle body a role, while in FIGS. 7 to 10 different cross-sectional shapes for the channels which serve to accommodate the throttle body according to FIGS. 1 to 6, are illustrated.

Fig. 11 shows in cross section an arrangement in such a regulator through which the regulator can be adjusted according to the calorific value or the specific weight of the gas can.

FIG. 12 shows a regulator for hanging gas light, and FIG. 13 shows a regulator for standing gas light while the

Figure 14 illustrates a regulator particularly suitable for gas cookers.

In the consumption regulator shown in Figs. 1 and 2, a ball rolls up in an arbitrarily curved tube of circular cross-section, which rises and narrows in the direction of flow of the gas, whereby the one that counteracts the gas pressure is caused by the respective angle of inclination of the curved path Component of the ball weight is increased according to the gas pressure, while the cross-section left free between the ball α and the tube b decreases in proportion to the fact that the same amount of consumption always flows through the regulator. So that the ball α cannot get stuck in the gradually narrowing tube b , the tube b is provided with a step or a stop c , which of course must still be in that part of the tube in which the tube cross-section is slightly larger than the spherical cross-section . While in the arrangement according to FIGS. 1 and 2 the raceway of the ball α is circular, it is an arrangement according to FIGS. 3 and 4 in which the raceway for the ball α is designed as an ellipse. By making this ellipse as flat as possible, or by making the curve as flat as possible, it can be achieved that the sensitivity of the controller is increased very greatly.

While a ball is used as the throttle element in the arrangement according to FIGS. 1 to 4, according to the arrangement according to FIGS. 5 and 6, a roller d serves as the regulating element. In the arrangement according to FIGS. 7 to 10, different cross-sectional shapes of channels are shown which are used to accommodate the throttle body according to FIGS. In FIG. 7, for example, a ball rolls in an elliptical channel, and in FIG. 8 in a rectangular channel, the channels tapering and extending upward in a manner similar to that previously described.

While in these arrangements according to FIGS. 7 and 8 the cross-section of the tube gradually tapers, in the arrangements according to FIGS. 9 and 10 the device is made so that the main channel has a somewhat larger, but always constant cross-section as the ball. The extension is produced in that one or more auxiliary channels e or f are provided, the cross-section of which gradually decreases. Instead of a plurality of channels gradually decreasing in cross-section, the arrangement in FIG. 10 can also be made such that the channels become less and less in number.

In FIG. 11, an exemplary embodiment of a controller is illustrated which can be set depending on the calorific value or depending on the specific weight of the type of gas in question. For this purpose, a secondary channel i leads from the space in front of the sphere to the space behind the sphere at which it assumes its highest position, the clear cross-section of which can be changed. The change is made by a needle valve g. In the same way, an adjustment to the type of gas can be made if you change the weight of the ball or if you use a larger or smaller ball.

In FIGS. 12 to 14, embodiments of regulators for hanging and standing light as well as for stoves are shown. The narrowing, upwardly rising channel, in which the ball rolls up, is mounted in the usual way so that the direction of the gas inlet coincides with the direction of the outlet, so that the regulator can be easily installed in each line, h and k are two stroke-limiting screws, with screw k also allowing the ball to be removed. So that the ball can be removed more easily in the arrangement according to FIG. 13, the supply line is bridged by a web I.

P λ τ ent-Amsi'Rüc π ε:

ι. Gas consumption regulator, in which the regulation by the movement of a throttle body in a curved, rising in the direction of flow of the gas and iao

The channel narrows in this direction, characterized by a throttle body (ball, roller or the like ) that works without sliding friction in a gradually narrowed, curved gas channel (b).

2. Gas consumption regulator according to claim i, characterized in that the inlet and outlet opening of the regulator are connected by an auxiliary channel ( i) whose flow cross-section can be changed by a regulating device (g).

For this purpose ι sheet of drawings.